9: The reaction equation of the NiCd battery is [...]. (Potassium solution is used as the electrolyte, but this does not have to be taken into account for this task.) 2NiOOH+2H2O+Cd2NiOOH)2+Cd(OH)2 a) Add the oxidation numbers to the reaction equation. b) Which substance is oxidized during discharge, and which is reduced? c) Calculate the theoretical maximum specific charge (=specific capacitance) Qspec in Ah/Kg of the battery. Assume that z=2 electrons are exchanged per formula turnover. d) How many grams of cadmium does such a battery contain with a capacity K=20 ? (Notes: The atomic weights of the substances involved can be found in the periodic table (last page). The Faraday constant F is given